npm ERR! gyp verb `which` failed python2 Error: not found: python2

This error occurs when the system cannot find Python2, which is required by Node.js to build native modules using the node-gyp tool.

To resolve this issue, you need to install Python2 on your system and make sure it is accessible via the PATH environment variable.

Here are the steps you can follow to install Python2:

1. Check if Python2 is already installed on your system by running the following command in your terminal:

   python2 --version

If Python2 is already installed, you should see the version number. If not, you will need to install it.

2. Install Python2 using your system's package manager. For example, on Ubuntu, you can run the following command:

   sudo apt-get install python2

On macOS, you can install Python2 using Homebrew:

   brew install python@2

3. Once Python2 is installed, you need to add it to the PATH environment variable. You can do this by adding the following line to your ~/.bashrc or ~/.bash_profile file:

   export PATH="/path/to/python2/bin:$PATH"

Replace /path/to/python2 with the actual path to the directory where Python2 is installed.

4. Save the file and reload your terminal or run the following command to apply the changes:

   source ~/.bashrc

or

   source ~/.bash_profile

Now try running your original command again and it should work without errors.